What is an umbilical hernia? An umbilical hernia is a bulge through the abdominal muscles in the area of the navel (belly button). The hernia may contain tissue from the abdomen, part of an organ (such as the intestine), or fluid.
Iliac crest contusion occurs due to bleeding of abdominal muscles and swelling. This can cause excruciating pain when the person tries to move his hip region. Bleeding can occur on the periosteum region of the bone resulting in inflammation and the muscles of the iliac crest would develop spasms.
Shoulder dislocation â Shoulder dislocation can cause sharp armpit and arm pain, weakens, numbness, swelling. It might also cause nerve damages. Viral infections â âInfections such as AIDS, chickenpox, typhoid, measles and other infections caused by a virus can cause a dull pain in the armpitâ [med-health.net].